CN105465033A - Long-shaft pump and assembly method thereof - Google Patents
Long-shaft pump and assembly method thereof Download PDFInfo
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- CN105465033A CN105465033A CN201510836833.6A CN201510836833A CN105465033A CN 105465033 A CN105465033 A CN 105465033A CN 201510836833 A CN201510836833 A CN 201510836833A CN 105465033 A CN105465033 A CN 105465033A
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Abstract
The invention provides a long-shaft pump. The long-shaft pump comprises multiple transmission shafts, couplings and clamping rings. Every two adjacent transmission shafts are connected through the corresponding coupling. Each coupling comprises a first semi-coupling body and a second semi-coupling body. The first semi-coupling bodies are connected with the second semi-coupling bodies in the axial direction of the corresponding transmission shafts. The clamping rings are clamped into the corresponding couplings. Each clamping ring comprises a first semi-clamping ring body and a second semi-clamping ring body. The first semi-clamping ring bodies are in butt joint with the second semi-clamping ring bodies in the radial direction of the corresponding transmission shafts. Each transmission shaft comprises a step part arranged at the end of the transmission shaft. The step parts of every two adjacent transmission shafts are opposite. The clamping rings and the step parts are clamped in a matched manner. Compared with the prior art, the transmission shafts of the long-shaft pump are connected conveniently, disassembly and assembly are easy, and maintenance is facilitated. The invention further provides an assembly method of the long-shaft pump.
Description
Technical field
The present invention relates to mechanical equipment technical field, particularly relate to a kind of long-shaft pump and assembly method thereof.
Background technique
Long-shaft pump is applicable to steel mill, power plant, waterworks, sewage treatment works etc. and pumps the media such as clear water, rainwater, sewage and seawater.Wherein, coupling is the important spare part of long-shaft pump, for connecting adjacent transmission shaft.
In correlation technique, long-shaft pump adopts case butt coupling or screwed coupling usually.But because the assembly precision of case butt coupling or screwed coupling requires higher, assembly process is loaded down with trivial details, make case butt coupling or screwed coupling assembly technology complexity, poor reliability.When dismantling above-mentioned coupling, easily there is coupling and transmission shaft corrosion, or cooperation position there are the problems such as foreign material, cause coupling and the mutual stuck phenomenon of transmission shaft, be difficult to dismounting, thus affect the normal operation of described long-shaft pump.Meanwhile, when coupling and transmission shaft are connected, transmission shaft needs to be designed to multidiameter shaft, makes described coupling carry-over moment to transmission shaft, and ladder shaft design causes the diameter of the transmission shaft connected comparatively large, waste cost of production.
Therefore, be necessary to provide a kind of new long-shaft pump to solve the problem.
Summary of the invention
The object of the invention is to solve the problems of the technologies described above, a kind of easy accessibility is provided, the long-shaft pump that cost is low.
For solving the problems of the technologies described above, the invention provides a kind of long-shaft pump, comprise many transmission shafts, coupling and snap ring, adjacent two described transmission shafts are connected by described coupling, described coupling comprises the first half-coupling and the second half-coupling, and described first half-coupling is connected with the axial direction of described second half-coupling along described transmission shaft; Described snap ring comprises the first half snap rings and the second half snap rings, described the first half snap rings are connected with the inwall of described first half-coupling, described the second half snap rings are connected with the inwall of described second half-coupling, and described the first half snap rings and described the second half snap rings dock along the axial direction of described transmission shaft; Described in every root, transmission shaft comprises the end difference being located at its end, and the described end difference of adjacent two transmission shafts is oppositely arranged, and described snap ring coordinates clamping with described end difference.
Preferably, described transmission shaft comprises flat key, and described coupling comprises keyway, and described transmission shaft and described coupling are connected by described flat key and described keyway.
Preferably, described end difference comprises the first shaft part and the second shaft part that are connected, the diameter of described first shaft part is greater than the diameter of described second shaft part, described snap ring comprises the groove being formed at its internal surface, described first shaft part is stuck in described groove, and described second shaft part is connected to the internal surface of described snap ring.
Preferably, described first half-coupling and described second half-coupling comprise locating slot respectively, and the internal surface of described first half-coupling and described second half-coupling is located at respectively by described locating slot, and described snap ring is stuck in described locating slot.
Preferably, described first half-coupling and described second half-coupling comprise positioning hole respectively, and described positioning hole runs through described first half-coupling and described second half-coupling, and described first half-coupling and described second half-coupling are connect by described positioning hole.
Preferably, the quantity of described positioning hole is 8 ~ 12.
A kind of assembly method of long-shaft pump is provided, comprises the following steps:
There is provided many transmission shafts, coupling and snap ring, described transmission shaft comprises the end difference being located at its end, and described coupling comprises the first half-coupling and the second half-coupling, and described snap ring comprises the first half snap rings and the second half snap rings;
The end difference of adjacent two transmission shafts to be oppositely arranged and linearly;
Snap ring is installed, described the first half snap rings is connected to the inwall of described first half-coupling, described the second half snap rings are connected to the inwall of described second half-coupling;
Described the first half snap rings are docked with described the second half snap rings, and by described first half-coupling and described second half-coupling contraposition, make described end difference coordinate clamping with described snap ring by contraposition;
Fastening coupling, is connected described first half-coupling after contraposition by fastening piece with described first half-coupling.
Compared to prior art, two transmission shafts that long-shaft pump provided by the invention adopts snap ring and coupling to be connected adjacent, described snap ring is connected to the inwall of described coupling, described snap ring coordinates clamping with the end difference of transmission shaft described in adjacent two, by the described end difference of described transmission shaft is arranged in described snap ring, again described first half-coupling is connected with described second half-coupling contraposition, realizes the location to two adjacent described transmission shafts and clamping.Described coupling and described snap ring are split-type structural, make transmission shaft connection, convenient disassembly described in adjacent two.Meanwhile, long-shaft pump provided by the invention, the described end difference of described two adjacent described transmission shafts coordinates clamping with described snap ring, makes described transmission shaft adopt the less diameter of axle to realize axially locating.Compared with correlation technique, greatly can reduce the processing diameter of described transmission shaft, make described transmission shaft easy processing, and reduce cost of production.After testing, when other parameter constant, the diameter of axle of the described transmission shaft of long-shaft pump provided by the invention compared with prior art, on average can reduce consumptive material 30%, thus can energy efficient greatly.
Accompanying drawing explanation
Fig. 1 is the part-structure schematic diagram of long-shaft pump of the present invention;
Fig. 2 is the structural representation of the coupling of long-shaft pump of the present invention;
Fig. 3 is the side-looking structural representation of the coupling of long-shaft pump of the present invention;
Fig. 4 is the structural representation of the first half-coupling of long-shaft pump of the present invention;
Fig. 5 is the structural representation of the second half-coupling of long-shaft pump of the present invention;
Fig. 6 is the structural representation of the snap ring of long-shaft pump of the present invention;
Fig. 7 is the cross-sectional view along A-A line in Fig. 6.
Embodiment
Below in conjunction with drawings and embodiments, the invention will be further described.
Please refer to Fig. 1, is the structural representation of long-shaft pump of the present invention.Described long-shaft pump 1 comprises multiple transmission shaft 11, coupling 12 and snap ring 13.Multiple described transmission shaft 11 is connected by described coupling 12.Described snap ring 13 is connected with the inwall of described coupling 12.
Described transmission shaft 11 is provided with two, is respectively the first transmission shaft 111 and second driving shaft 112.Described first transmission shaft 111 is symmetrical arranged with described second driving shaft 112.Described first transmission shaft 111 is identical with the structure of described second driving shaft 112, includes the end difference (non-label) being located at described transmission shaft 11 one end.Concrete, described first transmission shaft 111 comprises the first end difference 1111, first flat key 1112 and the first main shaft 1113.Described first end difference 1111 comprises the first shaft part 11111 and the second shaft part 11112.The diameter of described first shaft part 11111 is greater than the diameter of described second shaft part 11112.Described first shaft part 11111 is adjacent with described second shaft part 11112 connects to form ladder-type structure.Described first flat key 1112 is located at described first main shaft 1113 outer surface near one end of described first end difference 1111.Described second driving shaft 112 comprises the second end difference 1121, second flat key 1122 and the second main shaft 1123.Described second end difference 1121 is oppositely arranged with described first end difference 1111, and described second flat key 1122 is located at the outer surface of described second main shaft 1123 and one end of close described second end difference 1121.
Incorporated by reference to reference Fig. 2 and Fig. 3, wherein, Fig. 2 is the structural representation of the coupling of long-shaft pump of the present invention, and Fig. 3 is the side-looking structural representation of the coupling of long-shaft pump of the present invention.Along the axial direction of described first transmission shaft 111, described coupling 12 comprises the first half-coupling 121 and the second half-coupling 122.Wherein, axial direction when described first transmission shaft 111 when the axial direction of described first transmission shaft 111 is the normal work of described long-shaft pump 1 is connected with described second driving shaft 112, described first half-coupling 121 is connected with the axial direction of described second half-coupling 122 along described first transmission shaft 111.
Incorporated by reference to reference Fig. 4 and Fig. 5, wherein, Fig. 4 is the structural representation of the first half-coupling of long-shaft pump of the present invention, and Fig. 5 is the structural representation of the second half-coupling of long-shaft pump of the present invention.Described first half-coupling 121 comprises the first keyway 1211, second keyway 1212, first locating slot 1213 and the first positioning hole 1214, described first keyway 1211 lays respectively at described first locating slot 1213 both sides with described second keyway 1212, and is oppositely arranged with described first flat key 1112 and described second flat key 1122 respectively.Described first positioning hole 1214 runs through described first half-coupling 121 along the thickness direction of described first half-coupling 121 and extends along described second half-coupling 122.
Described second half-coupling 122 comprises the second locating slot 1221 and the second positioning hole 1222, and the center position of described second half-coupling 122 internal surface is located at by described second locating slot 1221 and described first locating slot 1213 is oppositely arranged.Described second positioning hole 1222 runs through described second half-coupling 122 along the thickness direction of described second half-coupling 122, and described second positioning hole 1222 is arranged alternately with described first positioning hole 1214.When described first positioning hole 1214 runs through described first half-coupling 121, the part that then described first positioning hole 1214 extends along described second positioning hole 1222 is non through hole, make described coupling 12 connect rear stress balance, strengthen working life and the intensity of described coupling 12.In present embodiment, the quantity of described first positioning hole 1214 and described second positioning hole 1222 is 8 ~ 12.Described first half-coupling 121 and described second half-coupling 122 run through described first positioning hole 1214 and the second positioning hole 1222 by screw and realize being connected to described first half-coupling 121 and described second half-coupling 122.By described first flat key 1112 and described first keyway 1211 coordinate and described second flat key 1122 and described second keyway 1212 coordinate clamping, prevent adjacent described first transmission shaft 111 and described second driving shaft 112 from radially rotating, realize the radial location to described first transmission shaft 111 and described second driving shaft 112.By screw, described first half-coupling 121 cooperatively interacted is fixedly connected with described second half-coupling 122, thus it is fixing to realize described first transmission shaft 111 and described second driving shaft 112.Described coupling 12 is split-type structural, and it coordinates with described first transmission shaft 111 and described second driving shaft 112 installs simply, is convenient to dismounting.
Please refer to Fig. 6 and Fig. 7, wherein, Fig. 6 is the structural representation of the snap ring of long-shaft pump of the present invention, and Fig. 7 is the cross-sectional view along A-A line in Fig. 6.Along the axial direction of described first transmission shaft 111, described snap ring 13 comprises the first half snap rings 131 and the second half snap rings 132, and described the first half snap rings 131 dock with the axial direction of described the second half snap rings 132 along described first transmission shaft 111.Described the first half snap rings 131 abut with described first locating slot 1213, and described the second half snap rings 132 abut with described second locating slot 1221, and described snap ring 13 coordinates clamping with described first end difference 1111 and described second end difference 1121.
Described the first half snap rings 131 comprise the first groove 1311, and described first groove 1311 is formed at the internal surface of described the first half snap rings 131, and described the first half snap rings 131 are connected with described first end difference 1111.Particularly, described first groove 1311 coordinates with described first shaft part 11111 and abuts, and described second shaft part 11112 abuts the internal surface of described first snap ring 131.
Described the second half snap rings 132 comprise the second groove 1321, and described second groove 1321 coordinates with described second end difference 1121 and abuts, and its mode be connected is same as described the first half snap rings 131 and is connected with described first end difference 1111.Described snap ring 13 coordinates clamping with described first end difference 1111 and described second end difference 1121, described first transmission shaft 111 and described second driving shaft 112 are adopted coordinates clamping can complete the axially locating of described first transmission shaft 111 and described second driving shaft 112 compared with one end of small axle diameter with described snap ring 13, described first main shaft 1113 and described second main shaft 1123 carry out axially locating without the need to offering larger axis footpath, save the material of described first main shaft 1113 and described second main shaft 1123, reduce cost of production.
Compared with correlation technique, long-shaft pump of the present invention adopts snap ring to be connected adjacent transmission shaft with coupling, described snap ring coordinates clamping with transmission shaft described in adjacent two, described coupling comprises the first half-coupling and the second half-coupling, described first half-coupling and described second half-coupling being connected adjacent described transmission shaft clamping by fastening piece, thus the location realized described two adjacent transmission shafts and clamping.Described coupling and described snap ring are split-type structural, make adjacent two transmission shafts easy to connect, are convenient to install and change.Meanwhile, two adjacent described transmission shafts adopt described snap ring to realize adopting the less diameter of axle to realize axially locating, thus reduce the diameter of the described transmission shaft connected, and make described transmission shaft easy processing, and reduce cost of production.After testing, when other parameter constant, the described transmission shaft diameter of axle of long-shaft pump provided by the invention compared with prior art, on average can reduce consumptive material 30%, thus can energy efficient greatly.
The present invention also provides a kind of assembly method of long-shaft pump, comprises the following steps:
Many transmission shafts 11, coupling 12 and snap ring 13 are provided, described transmission shaft 11 comprises the end difference (non-label) being located at its one end, described transmission shaft 11 comprises the first adjacent transmission shaft 111 and second driving shaft 112, described first transmission shaft 111 comprises the first end difference 1111 being located at its end, described second driving shaft 112 comprises the second end difference 1121 being located at its end, described coupling 12 comprises the first half-coupling 121 and the second half-coupling 122, and described snap ring 13 comprises the first half snap ring 131 rings and the second half snap rings 132;
Described first end difference 1111 of adjacent described first transmission shaft 111 and described second end difference 1121 of described second driving shaft 112 to be oppositely arranged and linearly;
Snap ring 13 is installed, described the first half snap rings 131 is connected to the inwall of described first half-coupling 121, described the second half snap rings 132 are connected to the inwall of described second half-coupling 122.In this step, described the first half snap rings 131 are connected in described first locating slot 1213 in described first half-coupling 121, described the second half snap rings 142 are connected in described second locating slot 1221 of described second half-coupling 132;
Described the first half snap rings 131 are docked with described the second half snap rings 132, and by described first half-coupling 121 and described second half-coupling 122 contraposition, make described first end difference 1111 and described second end difference 1121 coordinate clamping with described snap ring 13 by contraposition.In this step, described first half-coupling 121 being provided with described the first half snap rings 131 and described second half-coupling 122 that is provided with described the second half snap rings 132 are coordinated contraposition with described first transmission shaft 111 and described second driving shaft 112.Described first flat key 1112 and described first keyway 1211 contraposition clamping, described second flat key 1122 and described second keyway 1212 contraposition clamping, described first groove 1311 and described second groove 1321 abut with described first shaft part 11111 contraposition of described first transmission shaft 111 and described second driving shaft 112 simultaneously, and described second shaft part 11112 abuts with the internal surface of described snap ring 13;
Described the first half snap rings 131 after contraposition are connected by fastening piece with described the second half snap rings 132 by fastening coupling 12.In this step, run through described first positioning hole 1214 that cooperatively interacts and described second positioning hole 1222 described first half-coupling 121 and described second half-coupling 122 are clamped by screw and compresses described the first half snap rings 131 and described the second half snap rings 132, complete the connection of described first transmission shaft 111 and described second driving shaft 112.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (7)
1. a long-shaft pump, it is characterized in that, comprise many transmission shafts, coupling and snap ring, adjacent two described transmission shafts are connected by described coupling, described coupling comprises the first half-coupling and the second half-coupling, and described first half-coupling is connected with the axial direction of described second half-coupling along described transmission shaft; Described snap ring comprises the first half snap rings and the second half snap rings, described the first half snap rings are connected with the inwall of described first half-coupling, described the second half snap rings are connected with the inwall of described second half-coupling, and described the first half snap rings and described the second half snap rings dock along the axial direction of described transmission shaft; Described in every root, transmission shaft comprises the end difference being located at its end, and the described end difference of adjacent two transmission shafts is oppositely arranged, and described snap ring coordinates clamping with described end difference.
2. long-shaft pump according to claim 1, is characterized in that, described transmission shaft comprises flat key, and described coupling comprises keyway, and described transmission shaft and described coupling are connected by described flat key and described keyway.
3. long-shaft pump according to claim 1, it is characterized in that, described end difference comprises the first shaft part and the second shaft part that are connected, the diameter of described first shaft part is greater than the diameter of described second shaft part, described snap ring comprises the groove being formed at its internal surface, described first shaft part is stuck in described groove, and described second shaft part is connected to the internal surface of described snap ring.
4. long-shaft pump according to claim 1, it is characterized in that, described first half-coupling and described second half-coupling comprise locating slot respectively, and the internal surface of described first half-coupling and described second half-coupling is located at respectively by described locating slot, and described snap ring is stuck in described locating slot.
5. long-shaft pump according to claim 4, it is characterized in that, described first half-coupling and described second half-coupling comprise positioning hole respectively, described positioning hole cross arrangement, described positioning hole runs through described first half-coupling and described second half-coupling, and described first half-coupling replaces contraposition with described second half-coupling by described positioning hole and is connected.
6. long-shaft pump according to claim 5, is characterized in that, the quantity of described positioning hole is 8 ~ 12.
7. an assembly method for long-shaft pump, comprises the following steps:
There is provided many transmission shafts, coupling and snap ring, described transmission shaft comprises the end difference being located at its end, and described coupling comprises the first half-coupling and the second half-coupling, and described snap ring comprises the first half snap rings and the second half snap rings;
The end difference of adjacent two transmission shafts to be oppositely arranged and linearly;
Snap ring is installed, described the first half snap rings is connected to the inwall of described first half-coupling, described the second half snap rings are connected to the inwall of described second half-coupling;
Described the first half snap rings are docked with described the second half snap rings, and by described first half-coupling and described second half-coupling contraposition, make described end difference coordinate clamping with described snap ring by contraposition;
Fastening coupling, is connected described first half-coupling after contraposition by fastening piece with described first half-coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510836833.6A CN105465033A (en) | 2015-11-26 | 2015-11-26 | Long-shaft pump and assembly method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510836833.6A CN105465033A (en) | 2015-11-26 | 2015-11-26 | Long-shaft pump and assembly method thereof |
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| Publication Number | Publication Date |
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| CN105465033A true CN105465033A (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510836833.6A Pending CN105465033A (en) | 2015-11-26 | 2015-11-26 | Long-shaft pump and assembly method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089790A (en) * | 2016-07-20 | 2016-11-09 | 哈尔滨电气动力装备有限公司 | Pump shaft and lower half a coupler symmetric double key fit key technique under core main pump |
| CN108361290A (en) * | 2018-01-26 | 2018-08-03 | 中国核电工程有限公司 | A kind of more valve clamping couplings |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2177477A (en) * | 1985-07-01 | 1987-01-21 | Easthorpe Investments Ltd | Coupling device for interposition between an impeller and an armature |
| CN2675944Y (en) * | 2004-02-26 | 2005-02-02 | 甘根喜 | Fine hitch bar for multiple spindle joint transmission |
| CN2813986Y (en) * | 2005-08-16 | 2006-09-06 | 上海凯泉泵业（集团）有限公司 | Shaft connecting structure for long-shaft liquid low chemical pump |
| CN1904380A (en) * | 2006-07-31 | 2007-01-31 | 上海凯泉泵业（集团）有限公司 | Coupling device for long shaft pump |
| CN200940639Y (en) * | 2006-07-27 | 2007-08-29 | 上海凯泉泵业（集团）有限公司 | Simple rigid coupling device |
| CN201149041Y (en) * | 2008-01-25 | 2008-11-12 | 长沙天鹅工业泵股份有限公司 | Sleeve coupling and disassembling tool thereof |
| CN203421079U (en) * | 2013-07-12 | 2014-02-05 | 许昌远东传动轴股份有限公司 | Diaphragm coupling |
-
2015
- 2015-11-26 CN CN201510836833.6A patent/CN105465033A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2177477A (en) * | 1985-07-01 | 1987-01-21 | Easthorpe Investments Ltd | Coupling device for interposition between an impeller and an armature |
| CN2675944Y (en) * | 2004-02-26 | 2005-02-02 | 甘根喜 | Fine hitch bar for multiple spindle joint transmission |
| CN2813986Y (en) * | 2005-08-16 | 2006-09-06 | 上海凯泉泵业（集团）有限公司 | Shaft connecting structure for long-shaft liquid low chemical pump |
| CN200940639Y (en) * | 2006-07-27 | 2007-08-29 | 上海凯泉泵业（集团）有限公司 | Simple rigid coupling device |
| CN1904380A (en) * | 2006-07-31 | 2007-01-31 | 上海凯泉泵业（集团）有限公司 | Coupling device for long shaft pump |
| CN201149041Y (en) * | 2008-01-25 | 2008-11-12 | 长沙天鹅工业泵股份有限公司 | Sleeve coupling and disassembling tool thereof |
| CN203421079U (en) * | 2013-07-12 | 2014-02-05 | 许昌远东传动轴股份有限公司 | Diaphragm coupling |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089790A (en) * | 2016-07-20 | 2016-11-09 | 哈尔滨电气动力装备有限公司 | Pump shaft and lower half a coupler symmetric double key fit key technique under core main pump |
| CN108361290A (en) * | 2018-01-26 | 2018-08-03 | 中国核电工程有限公司 | A kind of more valve clamping couplings |
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Application publication date: 20160406 |